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ElectroMaster

Common Resistor and Capacitor Values

To manufacture resistors (or other components like capacitors) of every possible value would be imp

  1. ElectroMaster
    To manufacture resistors (or other components like capacitors) of every possible value would be impractical, instead they are made in a range of ‘Common Values’. The standard was created by Electronic Industries Association (EIA) and is often referred to as the “E” series. This series is broken into different tolerances:

    E3 – 50% tolerance (no longer used)
    E6 – 20% tolerance
    E12 – 10% tolerance
    E24 – 5% tolerance
    E48 – 2% tolerance
    E96 – 1% tolerance
    E192 – 0.5, 0.25, 0.1% and higher tolerances

    The number following the "E" specifies the number of logarithmic steps per decade and each step is the difference by tolerance (%). Below is the complete list of values for series E6 through to E192 (which are still being manufactured):

    resistors-eia-e6-e12-e24-e48-e96-e192.jpg
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